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EP0640445B1 - Federbetätigtes Eintreibgerät für Befestigungsmittel - Google Patents

Federbetätigtes Eintreibgerät für Befestigungsmittel Download PDF

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Publication number
EP0640445B1
EP0640445B1 EP94110760A EP94110760A EP0640445B1 EP 0640445 B1 EP0640445 B1 EP 0640445B1 EP 94110760 A EP94110760 A EP 94110760A EP 94110760 A EP94110760 A EP 94110760A EP 0640445 B1 EP0640445 B1 EP 0640445B1
Authority
EP
European Patent Office
Prior art keywords
spring means
driving tool
fastener driving
handle
power spring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP94110760A
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English (en)
French (fr)
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EP0640445A1 (de
Inventor
William S. Fealey
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Stanley Bostich Inc
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Stanley Bostich Inc
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Filing date
Publication date
Application filed by Stanley Bostich Inc filed Critical Stanley Bostich Inc
Publication of EP0640445A1 publication Critical patent/EP0640445A1/de
Application granted granted Critical
Publication of EP0640445B1 publication Critical patent/EP0640445B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
    • B25C5/00—Manually operated portable stapling tools; Hand-held power-operated stapling tools; Staple feeding devices therefor
    • B25C5/10—Driving means
    • B25C5/11—Driving means operated by manual or foot power
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
    • B25C5/00—Manually operated portable stapling tools; Hand-held power-operated stapling tools; Staple feeding devices therefor
    • B25C5/06—Manually operated portable stapling tools; Hand-held power-operated stapling tools; Staple feeding devices therefor without provision for bending the ends of the staples on to the work

Definitions

  • the invention relates to a spring actuated fastener driving tool with the features cited in the preamble of claim 1.
  • a spring actuated fastener driving tool of this type is disclosed in US-A-4,452,388. Basically, this driving tool operates satisfactorily. During the movement of the handle, the spring means is deflected and a pin which rotatably holds the pawl means moves along an arc which initially extends upwardly and forwardly. The relatively high level of force required to cycle the tool is of particular concern since it can result in worker fatigue and loss of production efficiency.
  • Another spring actuated fastener driving tool is disclosed in GB-A-646,222.
  • This tool has a handle which is pivotably mounted on a housing.
  • a trigger lever is rotatably mounted on the front end of the handle.
  • the trigger lever has a hook which engages with a hammer 8 and a rest position.
  • the hammer 8 is connected to a driver element for ejecting the fasteners.
  • the hook portion engages the hammer in the above-mentioned rest position and intermediate position. In the release position, the hook is deflected and releases the hammer so that a vertically arranged actuating coil spring is allowed to exert its resilient force on the hammer member to eject the fastener.
  • lift pawls are pivotable about a first axis into and out of engagement with a power spring assembly responsible for generating the fastener driving force.
  • the lift paws are in turn connected to an operating handle which is pivotable about a parallel second axis through successive driving cycles, each including a loading phase during which the pawls remain engaged with the power spring assembly as the latter is resiliently deflected and loaded, and a release phase during which the pawls are disengaged from the power spring assembly, thereby allowing the power spring assembly to act through an associated driver to drive a fastener into or through a work surface.
  • the first axis is defined by a bearing which is appropriately mounted and guided for movement towards the second axis during each loading phase, the result being a beneficial increase in mechanical advantage with an attendant lessening in the force required to operate the handle through successive drive cycles.
  • FIG. 10 there is shown at 10 an embodiment of a spring actuated fastener driving tool according to the present invention.
  • the tool is adapted to drive U-shaped staples 12 releasably interconnected in an elongated assembly indicated generally at 14 and typically referred to as a "stick".
  • the tool may be modified without departing from the scope of the invention to drive other types of fasteners, including for example brads, nails and the like.
  • the tool includes a basic housing comprising a mating pair of stamped sheet metal sides 16a, 16b appropriately shaped to define a head portion 18 and a base portion 20 with a finger opening 22 extending therethrough.
  • An inner body 24 is positioned between the sides 16a, 16b in the base portion 20 of the housing.
  • the inner body is preferably molded of a plastic material, typically DUPONT DELRIN 100 or the like.
  • the inner body is provided at its forward end with a resilient cantilevered leg 26, and at its rearward end with a second resilient cantilevered leg 28 spaced inwardly from a rearwardly protruding boss 30.
  • the boss 30 is straddled by the parallel legs 32a of a U-shaped spring bracket 32 having a depending tab 32b struck from its bight section 32c.
  • the sides 16a, 16b and the inner body 24 are interconnected by rivets 34, 36 or the like extending therethrough, with the rivet 36 additionally serving to join the spring bracket 32 to the boss 30 as part of this basic housing assembly.
  • a nose cap 38 is fitted over the sides at the forward end of the housing. The nose cap is latched under the enlarged exposed heads of a handle pivot pin 40, and is secured in place by a third fastener, typically a pin 42 held in place by a conventional E-ring (not shown).
  • the forward end of the inner body 24 cooperates with the sides 16a, 16b and the interior front surface 44 of the nose cap 38 to define a drive track 46 contained in a first reference plane P a and leading to an exit opening 48.
  • a driver 50 is reciprocally mounted in the drive track 46.
  • the forward leg 26 of the inner body serves to resiliently bias the driver 50 against the interior front surface 44 of the nose cap 38.
  • a magazine assembly generally indicated at 52 is located along the underside of the tool.
  • the magazine assembly includes an inverted generally channel shaped magazine shell 54 having an L-shaped 56 finger at its forward end received in a complimentary slot in the underside of the inner body 24.
  • the rear end of the magazine shell has an aperture 58 in its bight section spaced inwardly from a rearwardly extending horizontal Mange 60.
  • the resilient rear leg 28 of the inner body 24 snaps into the aperture 58 and serves to resiliently bias the magazine shell 54 forwardly into contact with the interior front surface 44 of the nose cap 38.
  • a channel-shaped metal shoe 70 is pivotally connected to the lower rear end of the housing by a pin 72 extending through elongated openings 74 in the sides 16a, 16b.
  • a shoe spring 76 encircles the pin 72 and has angularly extending legs coacting resiliently with a rear housing wall 78 and the bight section 80 of the shoe.
  • the forward end of the shoe 70 has a nose 82 (see Figure 1) in latched engagement as at 84 with shoulders on the nose cap 38.
  • the shoe spring 76 coacts with the rear housing wall 78 and the pin 72 to resiliently hold the shoe in closed latched engagement with the nose cap.
  • the shoe 70 is pushed rearwardly against the biasing action of the shoe spring 76, thereby unlatching the nose 82 as the pin 72 is pushed rearwardly in elongated openings 74.
  • the shoe is then swung open about pin 72 as shown in Figure 14.
  • a core 86 is carried on the shoe 70.
  • the shoe 70 has L-shaped fingers 88 struck from its bight section which coact with complimentary recesses in the core to hold the core in place.
  • the magazine shell 54 and the core 86 cooperate, when the shoe is in its closed latched position, to define a guide channel 90 for the staple stick 14 and for the pusher 68.
  • a pusher spring 92 is connected at one end to a tab 94 struck from the bight section of the pusher 68.
  • Spring 92 extends forwardly around a cross pin 98 at the forward end of the core 86 and then rearwardly for connection at its opposite end to a tab 100 struck from the bight section of the shoe 70.
  • the pusher spring 92 biases the pusher 68 forwardly, thereby urging a stick 14 of staples or the like in the same direction.
  • the end most staple 12a is urged against the back side of the driver 50 when the driver is located in the position shown, for example, in Figures 2 and 12.
  • a power spring assembly generally indicated at 102 is located in the upper area of the housing base portion 20.
  • Spring assembly 102 includes upper and lower superimposed leaf springs 102a, 102b.
  • Lower leaf spring 102b has a nose at its forward end protruding into interlocked engagement in an opening 104 in the upper end of driver 50.
  • the rear end of the spring assembly 102 extends beneath the bight section 32c of the spring bracket 32, and the lower leaf spring 102b rests on an adjustment lever 106 pivotally supported between the legs 32a of the spring bracket by a pin 108.
  • the tab 32b struck from the bight section of the spring bracket extends downwardly into aligned apertures in the springs, thereby serving to locate the springs longitudinally within the housing.
  • the adjustment lever 106 has an eccentric portion which can be rotated in a known manner to vary spring driving power.
  • a pair of pawls 110 are carried on a lift bearing 112 for pivotal movement about a shiftable axis of rotation A s .
  • the pawls have extensions 110a, 110b extending respectively downwardly and rearwardly with respect to axis A s .
  • the downward extensions 110a have shoulders 114 adapted to coact in latched engagement with the lower leaf spring 102b.
  • a handle assembly 116 is mounted for pivotal movement about a fixed axis of rotation A f defined by the handle pin 40 extending between the side 16a, 16b. As depicted in Figure 2, axis A f is contained in a second reference plane P b parallel to reference plane P A .
  • the handle assembly 116 includes an interiorly protruding bifurcated portion with spaced walls 118 interrupted by arcuate slots 120.
  • the upper and lower arcuate edges of the slots 120 are received respectively in upper and lower arcuate grooves 122 in enlarged diameter portions 124 of the lift bearing 112.
  • the reduced diameter ends 126 of the lift bearing are journalled for rotation about axis A s in slide members 128.
  • the slide members 128 are in turn arranged to move reciprocally indicated schematically at "x" in Figure 1 within angularly disposed windows 130 in the housing sides 16a, 16b.
  • a spring anchor 132 extends between and has a bottom edge resting on offset radial surfaces 136 of the lift pawls.
  • the spring anchor has ends received in notches 138 in the slide members 128, and upwardly protruding fingers 140 received in the lower ends of return springs 142.
  • the upper ends of the springs 142 in turn are received in bores 144 extending through a handle stop 146 located in the head portion of the housing.
  • the return springs 142 bias the pawls 110 into counterclockwise rotation (as viewed for example in Figure 2) about axis A s , thereby insuring that the downward pawl extensions 110a are resiliently urged into latched engagement with the lower leaf spring 102b.
  • the forward end of the spring assembly 102 is supported on a bumper 148 located in a pocket 150 at the forward end of the inner body 24.
  • the bumper 148 is integrally molded of a resilient material, e.g., urethane, and has a vibration damping element in the form of a hollow inverted cone 152 spaced inwardly from and surrounded by a peripheral wall 154. In its unstressed state, as depicted in Figure 4, the cone 152 extends upwardly above the top edge of the peripheral wall 154.
  • a resilient material e.g., urethane
  • the handle assembly has been pivoted in a clockwise direction to an intermediate position at which it has acted through the lift bearing 112 and the pawls 110 to resiliently deflect and load the power spring assembly 102, with an accompanying retraction of the driver 50 from the forward end of the magazine.
  • the driver 50 is resiliently biased against the same interior front surface by the resilient leg 26 of the inner body 24, thereby insuring alignment of the driver 50 with staple 12a.
  • the present invention offers a number of significant advantages over conventional spring actuated fastener driving tools. Most significantly is the interaction of the handle assembly 116, lift bearing 112 and pawls 110 in conjunction with movement of the slide members 128 in the housing windows 130 to provide greater motion at reduced mechanical advantage in the early stages of the stroke when power spring resistance is at its minimum, followed by an exertion of maximum force at reduced handle pressure as the power spring assembly reaches its fully loaded position.
  • the spring bracket 32 which holds and positions the leaf springs 102a, 102b of the power spring assembly 102, and in doing so receives the highest internal loads developed during the spring stressing stroke.
  • This arrangement allows the main housing components 16a, 16b to be used without first being heat treated, thereby facilitating manufacturing and simplifying assembly by avoiding distortion and subsequent necessary adjustments.
  • the engagement of the downwardly bent tab 32b of the spring bracket in the aligned apertures of the power leaf springs 102a, 102b provides accurate horizontal positioning of the front edge of the lower spring 102b where it is engaged by the lift pawls.
  • the spring bracket 32 and its associated adjustment lever 106 also provide a convenient means for varying the driving power being generated by the power spring assembly 102.
  • the inner body 24 is sandwiched between the two housing sides 16a, 16b together with the spring bracket 32. These components are rivetted together as a single assembly which becomes the unit onto which all other components are assembled.
  • the rivetting operation is the only permanent fastening performed, and is designed to be part of a "final" assembly procedure, so that no interim subassemblies are created. This approach significantly aids in ease of manufacture and assembly by avoiding the traditional welding and rivetting of subassemblies.
  • the biasing action of the resilient cantilevered front leg 26 of the inner body on the driver 50 insures that the driver is always properly aligned with the lead staple advanced into the drive track 46. This provides maximum clearance for the next adjacent staple in the stick and thereby insures a clean separation of the lead staple during the driving stroke.
  • This biasing action also serves to dampen driver vibration as the power spring assembly 102 comes to rest on the bumper 148.
  • the vibration dampening cone 152 on the bumper further serves to avoid annoying and potentially damaging power spring vibration.
  • the cantilevered resilient rear leg 28 of the inner body serves two purposes. First, it facilitates assembly by allowing the finger 56 at the forward end of the magazine shell to be hooked into the complimentary recess in the inner body and then allowing the opening 58 at the rear end of the magazine shelf to be snapped onto the leg 28. Secondly, when the nose cap 38 is assembled onto the housing, the magazine shell will be pushed slightly against the resilient bias of leg 28 so as to produce a firm contact between the interior front surface 44 of the nose cap and the front edges of the magazine shell.
  • the attachment of the core to the shoe by means of the finger/recess engagement avoids welding and also accommodates the possibility of interchanging different sized cores in order to accommodate various fastener sizes.
  • the handle stop conveniently serves a dual function of a return spring housing, and is engageable by the handle assembly at both extremes of its pivotal motion.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Claims (14)

  1. Federbetätigtes Eintreibwerkzeug (10) für Befestigungselemente, das umfaßt:
    ein Gehäuse (16a, 16b), das ein Magazin (52) enthält, das eine längliche Baugruppe lösbar miteinander verbundener Befestigungselemente (12) aufnimmt, wobei das Magazin ein vorderes Ende und eine Eintreibbahn (46) aufweist, die sich über das vordere Ende hinaus zu einer Austrittsöffnung (48) hin erstreckt;
    eine Spanneinrichtung (92), die mit dem Magazin (52) verbunden ist und eine Baugruppe der Befestigungselemente (12), die darin enthalten ist, auf das vordere Ende zu drückt;
    ein Eintreibelement (50), das auf der Bahn (46) hin- und herbeweglich angebracht ist;
    eine längliche Triebfedereinrichtung (102), die das Eintreibelement (50) hin- und herbewegt, wobei die Triebfedereinrichtung (102) an einem Ende in bezug auf das Gehäuse verankert ist und an einem gegenüberliegenden Ende mit dem Eintreibelement (50) verbunden ist;
    eine Lagereinrichtung (112), die eine erste Drehachse (As) bildet;
    eine Sperrklinkeneinrichtung (110), die die Lagereinrichtung (112) mit der Triebfedereinrichtung (102) lösbar verbindet, wobei die Sperrklinkeneinrichtung (110) von der Lagereinrichtung (112) um die erste Achse (As) in Eingriff mit der Triebfedereinrichtung (102) und aus dem Eingriff heraus schwenkbar getragen wird;
    eine Rückstellfedereinrichtung (142), die die Sperrklinkeneinrichtung (110) in Eingriff mit der Triebfedereinrichtung (102) spannt;
    ein Griff (116), der an dem Gehäuse (16) um eine zweite Drehachse (Af), welche parallel zu der ersten Achse ist, schwenkbar angebracht ist, wobei sich die erste Achse (As) zwischen einer ersten und einer zweiten parallelen Bezugsebene (Pa, Pb) befindet, die die Eintreibbahn (46) bzw. die zweite Achse einschließen, wobei der Griff (116) um die zweite Achse (Af) durch aufeinanderfolgende Eintreibzyklen geschwenkt werden kann, die jeweils einschließen:
    a) eine Ruheposition, in der sich das Eintreibelement (50) über das vordere Ende des Magazins erstreckt und einen Anschlag bildet, an den ein vorderstes Befestigungselement (12) der Baugruppe durch die Spanneinrichtung (92) gedrückt wird;
    b) eine Zwischenposition, in der über die Lagereinrichtung (112) und die Sperrklinkeneinrichtung (110) in Eingriff mit der Triebfedereinrichtung (102) die Triebfedereinrichtung (102) federnd gebogen und gespannt wird, wobei gleichzeitig das Eintreibelement (50) vom vorderen Ende des Magazins zurückgezogen wird, so daß sich das vorderste Befestigungselement (12) in die Eintreibbahn (46) hinein bewegen kann; und
    c) eine Freigabeposition, in der die Sperrklinkeneinrichtung (110) von der Triebfedereinrichtung (102) gelöst wird und die Triebfedereinrichtung (102) so freigegeben wird und ihre Federkraft auf das Eintreibelement (50) in einer Richtung ausübt, in der es in seine Ruheposition zurückgeführt wird, um ein Befestigungselement (12) in der Eintreibbahn (46) aus dem Gehäuse über die Austrittsöffnung (48) auszustoßen,
    dadurch gekennzeichnet, daß
    die Lagereinrichtung ein Hebelager (112) umfaßt, das beweglich von dem Gehäuse (16a, 16b) getragen wird;
    wobei der Griff (116) kontinuierlich mit dem Hebelager (112) in Eingriff gebracht werden kann;
    die Rückstellfedereinrichtung (132, 142) mit dem Gehäuse (16a, 16b) verbunden ist;
    das Gehäuse und der Griff mit Führungsflächen (120, 130) versehen sind, die mit dem Hebelager (112) zusammenwirken und Verschiebung des Hebelagers auf die zweite Bezugsebene (Pb) in Reaktion auf die Schwenkbewegung des Griffs (116) aus der Ruhestellung in die Freigabestellung ermöglichen.
  2. Eintreibwerkzeug für Befestigungselemente nach Anspruch 1, wobei die Führungsflächen (120) eine bogenförmige Bahn an dem Griff (116) enthalten.
  3. Eintreibwerkzeug für Befestigungselemente nach Anspruch 2, wobei sich die Lagereinrichtung (112) auf der bogenförmigen Bahn (120) in Reaktion auf Schwenkbewegung des Griffs (116) um die zweite Achse (Af) herum bewegt.
  4. Eintreibwerkzeug für Befestigungselemente nach Anspruch 1, 2 oder 3, das des weiteren eine Anschlageinrichtung (156) an dem Griff (116) umfaßt, wobei die Sperrklinkeneinrichtung (110) in bezug auf den Griff (116) während der Bewegung des Griffs aus der Ruheposition über die Zwischenposition gedreht werden kann und mit der Anschlageinrichtung (156) in Eingriff gebracht werden kann, um Lösen der Sperrklinkeneinrichtung (110) von der Trebfedereinrichtung (102) in der Freigabeposition zu bewirken.
  5. Eintreibwerkzeug für Befestigungselemente nach Anspruch 4, wobei die Sperrklinkeneinrichtung (110) eine erste und eine zweite Verlängerung (110a, 110b), die winklig angeordnet sind, enthält und die erste Verlängerung (110a) lösbar mit der länglichen Triebfedereinrichtung (102) in Eingriff gebracht werden kann und die zweite Verlängerung (110b) mit der Anschlageinrichtung in Eingriff gebracht werden kann.
  6. Eintreibwerkzeug für Befestigungselemente nach einem der Ansprüche 1 bis 5, wobei die Sperrklinkeneinrichtung (110) Arretiersegmente (114) enthält, die mit zusammenwirkenden Segmenten der Triebfedereinrichtung (102) in Eingriff gebracht werden können, wobei die Arretiersegmente (114) und die zusammenwirkenden Federsegmente (102b) gleichzeitig auf zusammenfallenden bogenförmigen Wegen um die zweite Achse (Af) herum bewegt werden können, um federndes Biegen und Spannen der Triebfedereinrichtung (102) zu bewirken, und sie gleichzeitig auf auseinanderlaufenden bogenförmigen Wegen um die zweite Achse (Af) herum bewegt werden können, um Lösen der Arretiersegmente (114) von den zusammenwirkenden Federelementen zu bewirken.
  7. Eintreibwerkzeug für Befestigungselemente nach Anspruch 1, wobei das Gehäuse (16) aneinanderpassende Seitenteile (16a, 16b) enthält, und wobei die Lagereinrichtung an den Gleitelementen (128) von den Seitenteilen beweglich aufgenommen getragen wird.
  8. Eintreibwerkzeug für Befestigungselemente nach Anspruch 7, wobei die Gleitelemente (128) von den Seitenteilen auf einem Weg beweglich getragen werden, der sich winklig zwischen der ersten und der zweiten parallelen Bezugsebene (Pa, Pb) erstreckt.
  9. Eintreibwerkzeug für Befestigungselemente nach Anspruch 8, wobei eine Rückstellfedereinrichtung (142) eine Spannwirkung auf die Gleitelemente (128) ausübt.
  10. Eintreibwerkzeug für Befestigungselemente nach einem der Ansprüche 1 bis 9, wobei das Gehäuse (16) aneinanderpassende Seitenteile (16a, 16b) aufweist, die einen hohlen Innenraum begrenzen, der durch die Triebfedereinrichtung (102) in eine erste Kammer und eine zweite Kammer unterteilt ist, wobei das Magazin (52) in der ersten Kammer an einer Position angeordnet ist, die von der Triebfedereinrichtung (102) um ein Innenkörperteil (24) beabstandet ist, das zwischen den Seitenteilen (16a, 16b) befestigt ist, und die Lagereinrichtung (112), die Sperrklinkeneinrichtung (110), die Rückstellfedereinrichtung (142), der Griff (116) und die Führungseinrichtung (120, 130) in der zweiten Kammer angeordnet sind.
  11. Eintreibwerkzeug für Befestigungselemente nach Anspruch 10, wobei das Innenkörperteil (24) aus Kunststoffmaterial geformt ist und sich ein federnder auslegerartiger erster und ein zweiter Schenkel (26, 28) jeweils an einander gegenüberliegenden Enden desselben befinden.
  12. Eintreibwerkzeug für Befestigungselemente nach Anspruch 11, wobei die Eintreibbahn (46) teilweise durch eine Nasenkappe (38) begrenzt wird, die eine Vorderwand des Gehäuses (16) bildet, und wobei der auslegerartige erste Schenkel (26) eine Spannkraft ausübt, die das Eintreibelement (50) an die Vorderwand drückt.
  13. Eintreibwerkzeug für Befestigungselemente nach Anspruch 10, das des weiteren ein Pufferelement (148) umfaßt, das von dem Innenkörperteil (24) an einer Position getragen wird, an der es mit der Trebfedereinrichtung (102) in Eingriff gebracht werden kann, wenn das Eintreibelement (50) in seine Ruheposition zurückgeführt wird, wobei das Pufferelement (148) federnd und nichtmetallisch ist und ein schwingungsdämpfendes Element (152) aufweist, das von einer Umfangswand mit einem oberen Rand nach innen beabstandet umgeben ist, wobei das dämpfende Element (152) über den oberen Rand hinaus vorsteht, um anfänglichen Kontakt mit der länglichen Trebfedereinrichtung (102) herzustellen.
  14. Eintreibwerkzeug für Befestigungselemente nach Anspruch 13, wobei das dämpfende Element (152) einen umgekehrten Kegel umfaßt, der integral mit der Umfangswand ausgebildet ist.
EP94110760A 1993-08-13 1994-07-11 Federbetätigtes Eintreibgerät für Befestigungsmittel Expired - Lifetime EP0640445B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US106373 1993-08-13
US08/106,373 US5335839A (en) 1993-08-13 1993-08-13 Spring actuated fastener driving tool

Publications (2)

Publication Number Publication Date
EP0640445A1 EP0640445A1 (de) 1995-03-01
EP0640445B1 true EP0640445B1 (de) 1999-04-07

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EP94110760A Expired - Lifetime EP0640445B1 (de) 1993-08-13 1994-07-11 Federbetätigtes Eintreibgerät für Befestigungsmittel

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US (1) US5335839A (de)
EP (1) EP0640445B1 (de)
JP (1) JP2686913B2 (de)
AU (1) AU675847B2 (de)
CA (1) CA2128343C (de)
DE (1) DE69417657T2 (de)

Families Citing this family (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD360119S (en) 1994-07-26 1995-07-11 Stanley-Bostitch, Inc. Staple gun
US5765742A (en) * 1996-08-09 1998-06-16 Marks; Joel Steven Light duty, forward acting stapling machine
US5931364A (en) * 1997-06-25 1999-08-03 Acme Staple Company, Inc. Fastening tool for securing an object to a substrate
US5967397A (en) * 1997-09-02 1999-10-19 The Stanley Works Staple and brad driving tool
US6367676B1 (en) 2001-06-28 2002-04-09 Samuel Opland Ejection force adjustable stapler
EP1522388A4 (de) * 2002-05-28 2008-02-13 E Top Corp Kassette für einen bürohefter
US6789719B2 (en) * 2002-11-01 2004-09-14 Arrow Fastener Co., Inc. Forward acting stapler with unique linkage
DE10311490A1 (de) * 2003-03-15 2004-09-23 Novus Gmbh & Co. Kg Hefter
US6966476B2 (en) * 2003-07-30 2005-11-22 Stanley Fastening Systems, L.P. Integrated check pawl, last nail-retaining, and dry fire lock-out mechanism for fastener-driving tool
US7097086B2 (en) * 2004-12-10 2006-08-29 Michael P. Joyce Stapler with leaf spring actuation mechanism
US7140526B2 (en) * 2004-12-27 2006-11-28 Plus Stationary Corporation Stapler
CN100406272C (zh) * 2004-12-31 2008-07-30 普乐士文具股份有限公司 订书机
US20080237293A1 (en) * 2005-02-25 2008-10-02 Yoshiyuki Ebihara Stapler
SE0500841L (sv) * 2005-04-15 2005-12-27 Isaberg Rapid Ab Häfthammare
US7681771B2 (en) * 2005-06-17 2010-03-23 Acco Brands Usa Llc Stapler
US20070012745A1 (en) * 2005-07-14 2007-01-18 Peigen Jiang Spring-powered stapler
EP1922180B1 (de) * 2005-09-08 2014-01-08 ACCO Brands USA LLC Antriebsgestänge für papierwerkzeug
US7942298B2 (en) * 2005-09-08 2011-05-17 Acco Brands Usa Llc Paper processing tool with force reducing drive arrangement
US7540400B2 (en) * 2006-01-06 2009-06-02 Staples The Office Superstore, Llc Stapler having a moveable strike plate with lockout mechanism
US7395955B2 (en) * 2006-01-06 2008-07-08 Staples The Office Superstore, Llc Stapler
US7404507B2 (en) * 2006-01-30 2008-07-29 Worktools, Inc. High-start spring energized stapler
US7464844B2 (en) * 2006-05-01 2008-12-16 Fpc Corporation Stapler device and method
CN101244551B (zh) * 2007-02-16 2010-09-29 丰民金属工业股份有限公司 省力型手动钉枪
US7815089B2 (en) * 2007-03-13 2010-10-19 Arrow Fastener Co., LLC. Fastener gun
US7637407B2 (en) * 2007-03-13 2009-12-29 Arrow Fastener Co., Inc. Fastener gun
US7604149B2 (en) * 2007-03-15 2009-10-20 Apex Mfg. Co., Ltd. Effort-saving stapler
US7644849B2 (en) * 2007-03-15 2010-01-12 Apex Mfg. Co., Ltd. Effort-saving stapler
CA2689484A1 (en) * 2007-06-06 2008-12-11 The Hospital For Sick Children Skin-derived precursor cells and uses thereof
US20080308599A1 (en) * 2007-06-13 2008-12-18 Worktools, Inc. High-start compact spring energized stapler
US8122805B2 (en) * 2007-12-12 2012-02-28 Acco Brands Usa Llc Paper processing tool with three-lever actuation
US7665644B2 (en) * 2007-12-14 2010-02-23 Chih-Wei Hu Stapler
CN101480791B (zh) * 2008-01-09 2010-08-25 丰民金属工业股份有限公司 省力型手动钉枪
USD655587S1 (en) * 2011-10-11 2012-03-13 Arrow Fastener Co., Llc Fastening tool
US20130133906A1 (en) * 2011-11-30 2013-05-30 Tsung-Wen Huang Tacker
US8978952B2 (en) 2012-03-05 2015-03-17 Worktools, Inc. Power spring configurations for a fastening device
US9770819B2 (en) 2012-06-14 2017-09-26 Stanley Fastening Systems, L.P. Pneumatically actuated mechanical hand tool
US9522463B2 (en) 2012-07-25 2016-12-20 Worktools Inc. Compact electric spring energized desktop stapler
US9415494B2 (en) * 2013-03-15 2016-08-16 Arrow Fastener Co., Llc Fastening tool assembly
USD717148S1 (en) 2014-04-22 2014-11-11 Arrow Fastener Co., Llc Fastening tool
USD717147S1 (en) 2014-04-22 2014-11-11 Arrow Fasterner Co., LLC Fastening tool
USD723894S1 (en) 2014-05-02 2015-03-10 Arrow Fastener Co., Llc Fastening tool
USD727125S1 (en) 2014-05-02 2015-04-21 Arrow Fastener Co., Llc Fastening tool
US20170225310A1 (en) * 2016-02-10 2017-08-10 Tsung-Wen Huang Operation assembly of a hammer tacker
US11577374B2 (en) * 2016-03-18 2023-02-14 Apex Mfg. Co., Ltd. Labor-saving stapler
US11065751B2 (en) * 2016-03-18 2021-07-20 Apex Mfg. Co., Ltd. Labor-saving stapler
TWI627036B (zh) * 2018-01-04 2018-06-21 Nail gun
CN110076728B (zh) * 2018-01-26 2021-11-09 堡胜企业股份有限公司 钉枪
TWI635936B (zh) * 2018-02-02 2018-09-21 堡勝企業股份有限公司 Nail gun
US11472014B2 (en) 2019-05-05 2022-10-18 Worktools, Inc. High efficiency torsion spring tacker

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US348236A (en) * 1886-08-31 richards
US1654170A (en) * 1926-02-19 1927-12-27 Neva Clog Products Inc Stapling machine
US2326540A (en) * 1941-06-12 1943-08-10 Henry A Torstenson Fastener driving tool
US2354760A (en) * 1941-11-25 1944-08-01 Boston Wire Stitcher Co Fastener-applying implement
US2420830A (en) * 1944-11-15 1947-05-20 Boston Wire Stitcher Co Fastener-applying implement
US2438712A (en) * 1945-03-29 1948-03-30 Boston Wire Stitcher Co Fastener-applying implement
US2461165A (en) * 1945-03-29 1949-02-08 Bostitch Inc Magazine for fastener applying implements
US2493640A (en) * 1947-03-21 1950-01-03 Hotchkiss Co E H Staple driving machine
GB646222A (en) * 1948-01-22 1950-11-15 Gerrard Ind Ltd Tacking machine
GB702389A (en) * 1950-07-26 1954-01-13 British Brehmer Ltd Improvements in and relating to stapling appliances
US2682053A (en) * 1951-08-23 1954-06-29 Speed Products Company Inc Plier type fastener driving device
US2795787A (en) * 1953-04-09 1957-06-18 Herman J Spencer Fastener applying device
US2755474A (en) * 1954-03-15 1956-07-24 Herman J Spencer Fastener applying device
US2769174A (en) * 1954-06-25 1956-11-06 Norris R Libert Tacking machine
US2996720A (en) * 1959-11-30 1961-08-22 James G Mackechnie Ticket feeding apparatus for hand stapling machines
US3172122A (en) * 1963-09-12 1965-03-09 Arrow Fastener Co Inc Plier type staplers
US3229882A (en) * 1964-01-03 1966-01-18 Arrow Fastener Co Inc Hand operated staple gun tackers
US3368731A (en) * 1966-06-23 1968-02-13 Parker Mfg Company Plier type stapler
SE406287B (sv) * 1976-05-17 1979-02-05 Isabergs Verkstads Ab Anordning vid ett verktyg for att med ett slag indriva ett festorgan
US4184620A (en) * 1977-08-01 1980-01-22 Parker Manufacturing Company Spring powered stapler
US4225075A (en) * 1979-01-29 1980-09-30 Chi Hui Neng Hook-nail and its driving machine
JPS572471A (en) * 1980-06-04 1982-01-07 Hitachi Ltd Diesel engine starter circuit
GB2102348B (en) * 1981-07-22 1985-02-06 Japan Banok Shokai Kk Apparatus for locking fasteners
US4450998A (en) * 1981-12-22 1984-05-29 Henry Ruskin Staple-driving tools
US4452388A (en) * 1982-08-05 1984-06-05 Textron, Inc. Spring actuated staple driving device
JPH0661707B2 (ja) * 1986-03-18 1994-08-17 代師行 海老原 ステ−プラ用カセツト
IT1216631B (it) * 1988-04-22 1990-03-08 Balma Capoduri E C S P A Cucitrice a punti metallici, adispezionabilita' facilitata.
US5131580A (en) * 1991-07-26 1992-07-21 Thomas Allman Emitter gun apparatus

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EP0640445A1 (de) 1995-03-01
CA2128343C (en) 1997-10-21
DE69417657D1 (de) 1999-05-12
CA2128343A1 (en) 1995-02-14
AU6738794A (en) 1995-02-23
DE69417657T2 (de) 1999-07-29
JPH07148672A (ja) 1995-06-13
JP2686913B2 (ja) 1997-12-08
AU675847B2 (en) 1997-02-20
US5335839A (en) 1994-08-09

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